My hives are rarely equal weight on each side. I was speaking hypothetically. And I only lift them about a quarter inch or so. I lift each side at least twice to make sure the readings repeat. The interesting thing is the graph. I tried my first open feeding a few weeks ago and based on the graph, almost all 5 gallons was consumed by one hive. The hive that needed some weight gain never appeared to find the feeder or either didn't want any. Now I need to focus on the light hive now.